Products > Overvoltage protection products > LH500 Transformer neutral point new complete protection device
LH500 Transformer neutral point new complete protection device

LH500 Transformer neutral point new complete protection device is specially designed for 110kV and 220kV power transformer neutral points. The grounding switch, lightning arrester, rod gap and transformer into a complete set to meet the requirements of transformer neutral point grounding operation and overvoltage protection in ungrounded operation. And clamp the neutral power frequency overvoltage, at the same time prevent relay protection maloperation caused by rod gap discharge under lightning and operating overvoltage.

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Product features and advantages:


◆Thermo-explosive model disconnector adopts small action current.

◆The application of lightning arrester with low residual voltage becomes possible relying on the thermo-explosive model disconnector.

◆Compared with the traditional neutral point protection device, it has compact structure and is easy to install and maintenance.

◆On the basis of the traditional neutral point protection device, the discharge gap is increased.

◆The double-column compact structure is adopted, with small volume, beautiful appearance and easy to install.

◆It is not only suitable for newly-built projects, but also can be optimized and reformed on the basis of the original lightning arrester, which is simple and easy to implement.


Product Usage:


◆It is specially used for neutral point protection of 110kV and 220kV power transformers.